85 citations · 332 across the 12 of their papers we have counts for
12 papers
Gapped Parent Hamiltonians for the Strongly Deformed Toric Code
Nandagopal Manoj, Zack Weinstein, Jason Alicea
Local non-unitary deformations of topologically ordered wavefunctions can drive transitions into peculiar states that challenge modern perspectives on gapped quantum matter. The st…
Intrinsic Error Thresholds in Nearly Critical Toric Codes
Zack Weinstein, Samuel J. Garratt
We study the protection of information in nearly critical topological quantum codes, constructed by perturbing topological stabilizer codes towards continuous quantum phase transit…
Charge-Informed Quantum Error Correction
Vlad Temkin, Zack Weinstein, Ruihua Fan +2
We investigate the statistical physics of quantum error correction in symmetry-enriched topological quantum memories. Starting from a phenomenological error model of c…
Spectral properties and coding transitions of Haar-random quantum codes
Grace M. Sommers, J. Alexander Jacoby, Zack Weinstein +2
A quantum error-correcting code with a nonzero error threshold undergoes a mixed-state phase transition when the error rate reaches that threshold. We explore this phase transition…
Efficient Detection of Strong-To-Weak Spontaneous Symmetry Breaking via the Rényi-1 Correlator
Zack Weinstein
Strong-to-weak spontaneous symmetry breaking (SWSSB) has recently emerged as a universal feature of quantum mixed-state phases of matter. While various information-theoretic diagno…
Computational Phase Transitions in Two-Dimensional Antiferromagnetic Melting
Zack Weinstein, Jalal Abu Ahmad, Daniel Podolsky +1
A computational phase transition in a classical or quantum system is a non-analytic change in behavior of an order parameter which can only be observed with the assistance of a non…
Nonlocality and entanglement in measured critical quantum Ising chains
Zack Weinstein, Rohith Sajith, Ehud Altman +1
We study the effects of measurements, performed with a finite density in space, on the ground state of the one-dimensional transverse-field Ising model at criticality. Local degree…
Scrambling Transition in a Radiative Random Unitary Circuit
Zack Weinstein, Shane P. Kelly, Jamir Marino +1
We study quantum information scrambling in a random unitary circuit that exchanges qubits with an environment at a rate . As a result, initially localized quantum information no…
Measurements conspire nonlocally to restructure critical quantum states
Samuel J. Garratt, Zack Weinstein, Ehud Altman
We study theoretically how local measurements perfomed on critical quantum ground states affect long-distance correlations. These states are highly entangled and feature algebraic…
Measurement-Induced Power-Law Negativity in an Open Monitored Quantum Circuit
Zack Weinstein, Yimu Bao, Ehud Altman
Generic many-body systems coupled to an environment lose their quantum entanglement due to decoherence and evolve to a mixed state with only classical correlations. Here, we show t…
Universality Classes of Stabilizer Code Hamiltonians
Zack Weinstein, Gerardo Ortiz, Zohar Nussinov
Stabilizer code quantum Hamiltonians have been introduced with the intention of physically realizing a quantum memory because of their resilience to decoherence. In order to analyz…
Absence of Finite Temperature Phase Transitions in the X-Cube Model and its Generalization
Zack Weinstein, Emilio Cobanera, Gerardo Ortiz +1
We investigate thermal properties of the X-Cube model and its `clock-type' (X-Cube) extension. In the latter, the elementary spin-1/2 operators of the X-Cube mo…